Angelina Jolie made a fresh warning over rape as part of her role as a special envoy for the UN (Picture: AP)

Angelina Jolie has renewed her calls for rape to be halted in war zones around the world.

The special envoy to the UN High Commissioner for Refugees made her appeal in front of an audience in Japan, where she said she hoped her directorial debut, In The Land Of Blood And Honey, would raise awareness.

‘This is just the beginning’, she said after G8 leaders agreed to work towards ending rape and sexual violence in conflict.

‘Our aim must be to shatter impunity, so that rape can no longer be used as a weapon of war anywhere in the world as it was in Bosnia, and as it is today from Congo to Syria’, the mother of six said at the UN University in Tokyo.

‘When I started down the road, making this film, I thought only of telling a story and doing my best to try to give a voice to survivors’, the 38-year-old added.

‘But today I am here not only as a director, but as a campaigner and part of a global effort that is growing every day.’